integers... help

**rikari** · 12-10-2009

hi, i'm trying to do run this program...
but there's something wrong...
when i tried entering 34567
the result would be negative integers, don't know why
please i need your help

insert

Code:

 
#include<stdio.h>
int main()
{
int input;
int first;
int second;
int third;
int fourth;
int fifth;

printf("Enter your digit: ");
scanf("%d", & input);
printf("\n");

first = input % 10;
second = (input % 100)/10;
third = (input % 1000)/100;
fourth = (input % 10000)/1000;
fifth = (input % 100000)/10000;

printf("first: %d", first);
printf("second: %d", second);
printf("third: %d", third);
printf("fourth: %d", fourth);
printf("fifth: %d", fifth);

return 0;

}

**roaan** · 12-10-2009

I dont see the output as negative integer....

**Epy** · 12-10-2009

Are you compiling this under DOS or somewhere else where integers would be 16-bits and bound between -32768 and 32767? There's nothing wrong with your code that I can see...you could try it with longs instead of ints.

**strange** · 12-10-2009

May I suggest you indent your source code? It helps dramatically with source code readability . . .

Code:

#include <stdio.h>

int main() {
    int input;
    int first, second, third, fourth, fifth;

    printf("Enter your digit: ");
    scanf("%d", & input);
    printf("\n");

    first = input % 10;
    second = (input % 100)/10;
    third = (input % 1000)/100;
    fourth = (input % 10000)/1000;
    fifth = (input % 100000)/10000;

    printf("first: %d", first);
    printf("second: %d", second);
    printf("third: %d", third);
    printf("fourth: %d", fourth);
    printf("fifth: %d", fifth);

    return 0;
}

And yes, as previously mentioned, old compilers (such as Turbo C) and old platforms (such as the 8086) had a maximum range for ints of -32,768 to 32,767 (32-bit platforms and compilers usually have a range of -2,147,483,647 to 2,147,483,648, some 64-bit platforms may define the long type to be from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807).

If you are using a compiler old enough to have the int type as 16 bits, then I strongly suggest you find another compiler.

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